Research On Remote Fault Monitoring System Of Combine Harvester

As an indispensable harvesting tool in modern agricultural machinery,the combine harvester is one of the main factors limiting its improvement in harvesting efficiency due to the high failure rate and failure diversity during its work.In order to effectively solve the shortcomings of traditional manual fault diagnosis methods,it is of great significance to combine modern intelligent technology to remotely monitor the combine harvester.This paper designs a remote fault monitoring system for combine harvesters based on the research and analysis of remote fault systems for combine harvesters at home and abroad.Combining Netty network communication technology to build a remote monitoring platform to realize fault diagnosis and early warning;using Android smart mobile technology,a mobile client is designed to meet the needs of outdoor workers,solve the problem of not being easy to carry on the PC side,and improve remote monitoring The applicability of the system.The main research contents of the thesis are as follows:(1)Design and development of remote server.The remote server is composed of a communication server,an application server,and a database server.Based on the Netty network communication framework,the communication server design is completed,and the communication between the server and the vehicle-mounted collection terminal is realized.The application server uses Redis technology to read effective data,and uses the Hibernate application framework to operate the remote Mysql database to realize data analysis and storage,and at the same time convert the data into JSON format for transmission.Then based on the cross-platform features of the Java language,the Python model file is called,and the effective data is analyzed through the fault warning model.In addition,in order to maintain the accuracy of the fault warning model,an update strategy of the fault monitoring model is proposed.The database server adopts two database designs,Mysql and Redis.Mysql database provides data persistent storage and query functions,such as work data,fault query data,and mobile administrator account information;Redis database serves as a transfer station for data interaction between various parts of the system.(2)Design and development of mobile terminal.The mobile terminal is developed based on the Android system,and the design is divided into a login interface,a monitoring interface and a query interface.Based on the Litpal database framework,the login and registration functions of the login interface are realized;the monitoring interface combines the UI features of the Android platform and the Redis database technology to realize the real-time display of work data and warning results,as well as the fault feedback function;the query interface uses JDBC technology to connect to the remote database The remote fault query function is realized,and the on-site operator can remotely query the fault cause and solution of the corresponding fault,and realize the accurate positioning and handling of the fault.(3)System debugging and testing.Through debugging and testing of the system,the feasibility of the system is verified,and the expected effect can be basically achieved,and the fault monitoring of the remote mobile terminal is realized.